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Finding the Fourth Proportional to 17,998.66, 26,988.30 and 6,902.98

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Solution

The fourth proportional to 17,998.66, 26,988.30 and 6,902.98 is: 10,350.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,998.66 : 26,988.30 = 6,902.98 : x
  2. Step 2: Convert to fraction form
    17,998.66/26,988.30 = 6,902.98/x
  3. Step 3: Cross multiply
    17,998.66x = 26,988.30 × 6,902.98
  4. Step 4: Simplify right side
    17,998.66x = 186,299,695.13
  5. Step 5: Solve for x
    x = 186,299,695.13/17,998.66
  6. Step 6: Final answer
    x = 10,350.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.